equality

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What's the difference between equal?, eql?, ===, and ==?

I am trying to understand the difference between these four methods. I know by default that == calls the method equal? which returns true when both operands refer to exactly the same object.[详细]

2023-03-30 04:08 分类：问答
How to extract string representation of key object

I\'m storing items in a strongly typed IDictionary<TKey, TValue> such that the value also represents the key:[详细]

2023-03-30 01:58 分类：问答
Programming languages that feature shorthand equality logic, for comparing one variable to multiple

I\'d be interested to know whether there are programming languages which have \"shorthand equality constructs\" (I just made that term up, but not sure how to describe it).[详细]

2023-03-29 14:25 分类：问答
How do I search for one array whose contents match another?

I have an ArrayList of int arrays that is returning false when I ask if it contains the specified coordinates. It does contain the coordinates I request so it should return TRUE.[详细]

2023-03-27 00:12 分类：问答
How to use IEqualityComparer<T>.Equals() in ToLookUp<T>() Extension

I stumbled upon an article regarding the Birthday Paradox and it\'s implications when overriding the GetHashCode method, I find myself in a bind.[详细]

2023-03-25 21:29 分类：问答
Numeric promotion and equality? [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Wrapper class and == operator[详细]

2023-03-25 19:10 分类：问答
How .NET determines equal objects in LINQ "select new"?

Here is example: class 开发者_如何学CA { public long ParentId; public string ParentName; public string Name;[详细]

2023-03-23 21:50 分类：问答
Implementing a geographic coordinate class: equality comparison

I \'m integrating a geographic coordinate class from CodePlex to my personal \"toolbox\" library. This class uses float fields to store latitude and longitude.[详细]

2023-03-22 11:39 分类：问答
String issue - Java

I am writing a program for class in which I analyze different product codes entered. It is pretty simple but I am having a problem. I am trying to end a loop if a user enters an \"E\" or \"e\". Howeve[详细]

2023-03-21 12:18 分类：问答
Best way to check two EntitySets equality basied on one of their proprties?

I have two Objects from the same Class, lets say it named as Class1, Class1 has an EntitySet of ClassChild,[详细]

2023-03-20 17:04 分类：问答